1786 Conus decrepitus Kiener, 1847: synonym of Conus cocceus Reeve, 1844 Conus delanoyi Trovão, 1979: synonym of Conus delanoyae Trovão, 1979 Conus delessertii Récluz, 1843: synonym of Conasprella delessertii (Récluz, 1843) Conus delicatus Schepman, 1913: synonym of Conasprella aculeiformis (Reeve, 1844) Conus delucai Coltro, 2004: synonym of Conasprella iansa (Petuch, 1979) Conus dentatus Schröter, 1803: synonym of Imbricaria punctata (Swainson, 1821) Conus deprehendens Prelle, 2009: synonym of Conus betulinus Linnaeus, 1758 Conus deshayesii Reeve, 1843: synonym of Conus cuvieri Crosse, 1858 Conus desmotus Tomlin, 1937: synonym of Conus granarius Kiener, 1847 Conus dictator Melvill, 1898: synonym of Conasprella dictator (Melvill, 1898) Conus dieteri Moolenbeek, Zandbergen & Bouchet, 2008: synonym of Conasprella dieteri (Moolenbeek, Zandbergen & Bouchet, 2008) Conus dilectus Gould, 1850: synonym of Conus textile Linnaeus, 1758 Conus dillwynii Reeve, 1849: synonym of Conus erythraeensis Reeve, 1843 Conus discrepans G. B. Sowerby I, 1833: synonym of Conus catus Hwass in Bruguière, 1792 Conus dolium Boivin, 1864: synonym of Conus pica A. Adams & Reeve, 1848 Conus dondani Kosuge, 1981: synonym of Profundiconus dondani (Kosuge, 1981) Conus douvillei Fenaux, 1942: synonym of Conus imperialis Linnaeus, 1758 Conus drangai Schwengel, 1955: synonym of Conus orion Broderip, 1833 Conus duplicatus G. B. Sowerby I, 1823: synonym of Conus australis Holten, 1802 Conus dupontii Kiener, 1846: synonym of Parametaria dupontii (Kiener, 1846) Conus duvali Bernardi, 1862: synonym of Conasprella pusio (Hwass in Bruguière, 1792) Conus dux Hwass in Bruguière, 1792: synonym of Conus circumcisus Born, 1778 Conus dux Röding, 1798: synonym of Conus maldivus Hwass in Bruguière, 1792 Conus echinulatus Kiener, 1848: synonym of Conasprella puncticulata (Hwass in Bruguière, 1792) Conus edentulus Reeve, 1844: synonym of Mitra (Dibaphus) edentula Swainson, 1823 represented as Mitra edentula Swainson, 1823 Conus eduardi Delsaerdt, 1997: synonym of Conus milneedwardsi eduardi Delsaerdt, 1997 Conus edwardi Preston, 1908: synonym of Conus zonatus Hwass in Bruguière, 1792 Conus egregius G. B. Sowerby III, 1914: synonym of Conus quercinus [Lightfoot], 1786 Conus elegans G. B. Sowerby III, 1895: synonym of Conasprella elegans (G. B. Sowerby III, 1895) Conus elegans Schepman, 1913: synonym of Conus comatosa Pilsbry, 1904: synonym of Conasprella comatosa (Pilsbry, 1904) Conus elokismenos Kilburn, 1975: synonym of Conasprella elokismenos (Kilburn, 1975) Conus elisae Kiener, 1846: synonym of Conus pennaceus Born, 1778 Conus elongatus Reeve, 1843: synonym of Conus moreleti Crosse, 1858 Conus elventinus Duclos, 1833: synonym of Conasprella mindana (Hwass in Bruguière, 1792) Conus emarginatus Reeve, 1844: synonym of Conasprella